Home / 11,726.19-16,182.27-6,420.87

Finding the Fourth Proportional to 11,726.19, 16,182.27 and 6,420.87

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Solution

The fourth proportional to 11,726.19, 16,182.27 and 6,420.87 is: 8,860.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.19 : 16,182.27 = 6,420.87 : x
  2. Step 2: Convert to fraction form
    11,726.19/16,182.27 = 6,420.87/x
  3. Step 3: Cross multiply
    11,726.19x = 16,182.27 × 6,420.87
  4. Step 4: Simplify right side
    11,726.19x = 103,904,251.97
  5. Step 5: Solve for x
    x = 103,904,251.97/11,726.19
  6. Step 6: Final answer
    x = 8,860.87

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.